电工电气
電工電氣
전공전기
ELECTROTECHNICS ELECTRIC
2014年
8期
50-53
,共4页
曹小龙%陈平%曹小虎%吴栋梁%雷乘龙
曹小龍%陳平%曹小虎%吳棟樑%雷乘龍
조소룡%진평%조소호%오동량%뢰승룡
变压器%色谱分析法%过热性故障%铁芯多点接地
變壓器%色譜分析法%過熱性故障%鐵芯多點接地
변압기%색보분석법%과열성고장%철심다점접지
transformer%spectrum analysis method%over heating fault%iron core multiple spots grounding
介绍了一台主变压器的故障实例，分析油色谱跟踪数据，采用各种判断方法认为变压器有发生铁芯多点接地故障的可能，经停运检查证实了色谱分析结论。根据现场条件采用铁芯加压法来处理故障，交流耐压试验表明铁芯多点接地故障已消除，结合故障处理过程，给出了确保变压器正常运行的预防措施。
介紹瞭一檯主變壓器的故障實例，分析油色譜跟蹤數據，採用各種判斷方法認為變壓器有髮生鐵芯多點接地故障的可能，經停運檢查證實瞭色譜分析結論。根據現場條件採用鐵芯加壓法來處理故障，交流耐壓試驗錶明鐵芯多點接地故障已消除，結閤故障處理過程，給齣瞭確保變壓器正常運行的預防措施。
개소료일태주변압기적고장실례，분석유색보근종수거，채용각충판단방법인위변압기유발생철심다점접지고장적가능，경정운검사증실료색보분석결론。근거현장조건채용철심가압법래처리고장，교류내압시험표명철심다점접지고장이소제，결합고장처리과정，급출료학보변압기정상운행적예방조시。
Introduction was made to a fault actual example of a set of main transformer. This paper analyzed oil spectrum tracking data and adopted a variety of judgement methods to consider that there was possible of transformer with multiple spots grounding fault taking place, and tieup examination proved spectrum analysis conclusion. According to site conditions, an iron core pressure adding method was adopted to have trouble shooting. The AC withstanding voltage test shows that the iron core multiple spots grounding faults have been shoot out. Combined with trouble shooting process, this paper gave the prevention measures to ensure normal transformer operation.
